index f9e3d9dd04bb6de0f0ac4c7146289046d7668f4c..5bf405f7f290f210d3695c2e1d0d155b2ac80ea4 100644 (file)
#ifndef __UNDO_COMMIT_OBSERVER_H__
#define __UNDO_COMMIT_OBSERVER_H__
-namespace Inkscape {
+#include "gc-managed.h"
-namespace XML {
+namespace Inkscape {
class Event;
-}
-
/**
* Observes changes made to the undo and redo stacks.
*
* UndoStackObservers should not be used on their own. Instead, they should be registered
* with a CompositeUndoStackObserver.
*/
-class UndoStackObserver {
+class UndoStackObserver : public GC::Managed<> {
public:
UndoStackObserver() { }
virtual ~UndoStackObserver() { }
/**
* Triggered when the user issues an undo command.
*
- * \param log Pointer to an XML::Event describing the undone event.
+ * \param log Pointer to an Event describing the undone event.
*/
- virtual void notifyUndoEvent(XML::Event* log) = 0;
+ virtual void notifyUndoEvent(Event* log) = 0;
/**
* Triggered when the user issues a redo command.
*
- * \param log Pointer to an XML::Event describing the redone event.
+ * \param log Pointer to an Event describing the redone event.
*/
- virtual void notifyRedoEvent(XML::Event* log) = 0;
+ virtual void notifyRedoEvent(Event* log) = 0;
/**
* Triggered when a set of transactions is committed to the undo log.
*
- * \param log Pointer to an XML::Event describing the committed events.
+ * \param log Pointer to an Event describing the committed events.
*/
- virtual void notifyUndoCommitEvent(XML::Event* log) = 0;
+ virtual void notifyUndoCommitEvent(Event* log) = 0;
+
+ /**
+ * Triggered when the undo log is cleared.
+ */
+ virtual void notifyClearUndoEvent() = 0;
+
+ /**
+ * Triggered when the redo log is cleared.
+ */
+ virtual void notifyClearRedoEvent() = 0;
+
};
}